3809725 has 6 divisors (see below), whose sum is σ = 4724090. Its totient is φ = 3047760.

The previous prime is 3809723. The next prime is 3809731. The reversal of 3809725 is 5279083.

It can be written as a sum of positive squares in 3 ways, for example, as 1214404 + 2595321 = 1102^2 + 1611^2 .

It is not a de Polignac number, because 3809725 - 2¹ = 3809723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3809723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76170 + ... + 76219.

Almost surely, 2^3809725 is an apocalyptic number.

It is an amenable number.

3809725 is a deficient number, since it is larger than the sum of its proper divisors (914365).

3809725 is a wasteful number, since it uses less digits than its factorization.

3809725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152399 (or 152394 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 3809725 is about 1951.8516849392. The cubic root of 3809725 is about 156.1820824824.

The spelling of 3809725 in words is "three million, eight hundred nine thousand, seven hundred twenty-five".